GadgetToJScript VS Metasploit

I'm sorry but most of this is not right. We can see in the attacker is running JScript code in memory using the eval function. There are no files dropped to disk and no child processes spawned here -- it's all in memory and all still inside the exchange web server process. At this point, it's impossible to know what JScript was executed, but it is possible (and not that difficult) to run whole .NET programs using JScript. From .NET there's nothing an attacker can't do. They could have easily run a beacon inside of the exchange webserver process without any files dropped to disk or processes spawned.

Metasploit

Metasploit: https://github.com/rapid7/metasploit-framework

1-) Learn Hacking on a debian based distro like Kali Linux - I personally started with tools like nikto, camhacker... and then moved to more complex frameworks like metasploit.

I once had to give a presentation about Metasploit, and whether it was ethically correct for the creator to make it free and open-source, available to everyone. And in researching this I realized that there were a lot of parallels between the arguments for or against hacking tools being readily available and the arguments for or against gun control. I'll just list a few quickly:

Metasploit Framework (mentioned earlier)

This phase is where the pen testers practically prove that there exist potential vulnerabilities in the target system. The pen testers do the hacking using an array of technical approaches and social engineering methods to exploit the vulnerabilities. The ethical hackers commonly use Metasploit framework to automatically execute exploitation against the target systems. Moreover, they may install malwares such as rootkit to persistently maintain their foothold and further compromise the target system.